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Erik Gfesser

📍 Greater Chicago Area

Lowe's Event Log Issues

Looks like the Lowe's event log is having some issues: I received a delivery notice an hour ago for a new range that was already delivered 6 months ago. At first I thought that perhaps this was an inadvertently sent duplicate event, but in checking my own log

Media Query Source: Part 14

The responses I provided to a media outlet on August 9, 2018: Media: Customer-centricity, customer journeys, data as an asset. In a lot of cases, it's just lip service. The real reason companies aren't keeping their promises traces back to the data they have and don&

New Book Review: "High Performance In-Memory Computing with Apache Ignite"

New book review for High Performance In-Memory Computing with Apache Ignite, by Shamim Bhuiyan, Michael Zheludkov, and Timur Isachenko, Lulu.com, 2017, reposted here: If you're looking for a book that covers Apache Ignite, as of mid-2018 this is still the only one. And while working through this

Media Query Source: Part 13 - TechRepublic (US digital magazine); 8 hurdles IT must overcome if they want open source success

* TechRepublic (US digital magazine) * Open source hurdles that must be overcome * Commercial entities often behind open source * Due diligence should always be performed My responses ended up being included in an article at TechRepublic (August 16, 2018). Extent of verbatim quote highlighted in orange, paraphrased quote highlighted in gray. Above

The New Yorker Magazine as Test Data

Sometimes cartoons in The New Yorker provide an entertaining source of test data: in this case, yelp reviews (7/30/2018). But what kind of sentiment is being expressed when the product isn't even tried? I mean, these respondents could have at least provided some reasoning (other than

New Book Review: "Designing Event-Driven Systems"

New book review for Designing Event-Driven Systems: Concepts and Patterns for Streaming Services with Apache Kafka, by Ben Stopford, O'Reilly, 2018: Sam Newman, the author of "Building Microservices: Designing Fine-Grained Systems" (see my review), mentions Steve Yegge's "Platform Rant" in the foreward

New Book Review: "Fast Data Architectures for Streaming Applications"

New book review for Fast Data Architectures for Streaming Applications: Getting Answers Now from Data Sets that Never End, by Dean Wampler PhD, O'Reilly, 2016, reposted here: A brief 40-page read that walks the reader through an introduction to the concepts of streaming, event logs and message queues,

Personal Reading List: 3Q2018

My personal reading list for July, August, and September 2018. Color Key: Special Notes, Completed Reading. Updated throughout the Quarter. At Bat (Schnell) Building Evolutionary Architectures: Support Constant Change, by Neal Ford, Rebecca Parsons, and Patrick Kua, O'Reilly, 2017. Copy provided by O'Reilly. Designing Event-Driven Systems:

New Book Review: "Designing Data-Intensive Applications"

New book review for Designing Data-Intensive Applications: The Big Ideas Behind Reliable, Scalable, and Maintainable Systems, by Martin Kleppmann, O'Reilly, 2017, reposted here: Kleppmann mentioned during his "Turning the Database Inside Out with Apache Samza" talk at Strange Loop 2014 (see my notes) that he was

Media Query Source: Part 12 - Connected Futures (Cisco blog); 5 classic blunders of digital transformation

* Connected Futures (Cisco blog) * Classic digital transformation blunders * Only viewing success in light of original vision * Taking on too much at once! My responses ended up being included in an article at Connected Futures, Cisco's executive insights magazine (September 5, 2018), entitled "5 Classic Blunders of Digital